I'm new here and have the following question. Invitation Links for Skype for Business / Lync meetings dont work in Firefox (currently 56.0.1 64Bit).Using such a link in IE, Edge or Chrome works fine. I cannot post such a link here in public due to security reasons

I dont talk about the meeting plugin ! The link opens the locally installed SkypeFB / Lync Client and the meeting. But with firefox the GUI is openend but the meeting is not properly connected.